On Wed, Jan 11, 2012 at 1:05 PM, James Cameron <[email protected]> wrote: > On Wed, Jan 11, 2012 at 12:51:48AM -0800, Sameer Verma wrote: >> I'm seeing a "short read of zdata file" on running fs-update on a 1.75 >> using os23.zd4 >> >> Any suggestions? > > Reflash to the current firmware. For an XO-1.75 B1, that is Q4C12. > http://wiki.laptop.org/go/OLPC_Firmware_q4c12 > > Then try again. > > If the problem persists, then consider this explanation. > > The zdata file, the os23.zd4 file, contains block headers then block > data. Each block header describes the length of data that follows. If > the length is shorter than the remaining length of the file at that > point, you get "Short read of zdata file". > > The most likely causes of this message are: > > 1. the file is missing data from the end, usually caused by incomplete > download, so check the file size is 766009232 bytes, and if it is less > then resume the download from where it left off, see > http://wiki.laptop.org/go/Download for methods, > > 2. the file has a corrupted block header, usually caused by corruption > during download, so check the md5sum is > 26c565b19c1b5465c421183cdd771546, and if it is incorrect then correct it > using one of the methods at > http://wiki.laptop.org/go/Download#Wrong_Data > > 3. the USB drive could not be read by OpenFirmware, resulting in a > premature close of the file ... if so there should be some preceeding > message, please report it. Otherwise, try using OpenFirmware to read > the file and copy it, then check the copy with another computer, e.g. > > ok copy u:\os23.zd4 u:\copy.zd4 > > -- > James Cameron > http://quozl.linux.org.au/ > _______________________________________________ > Devel mailing list > [email protected] > http://lists.laptop.org/listinfo/devel > >
md5sum checked out, but changing the USB stick fixed the problem. Not sure why. Running on Q4C08 Sameer _______________________________________________ Devel mailing list [email protected] http://lists.laptop.org/listinfo/devel
